Home / 89,664.40-134,496.60-88,109.20

Finding the Fourth Proportional to 89,664.40, 134,496.60 and 88,109.20

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Solution

The fourth proportional to 89,664.40, 134,496.60 and 88,109.20 is: 132,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,664.40 : 134,496.60 = 88,109.20 : x
  2. Step 2: Convert to fraction form
    89,664.40/134,496.60 = 88,109.20/x
  3. Step 3: Cross multiply
    89,664.40x = 134,496.60 × 88,109.20
  4. Step 4: Simplify right side
    89,664.40x = 11,850,387,828.72
  5. Step 5: Solve for x
    x = 11,850,387,828.72/89,664.40
  6. Step 6: Final answer
    x = 132,163.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.